8 pin 1418156-1 8E0972576 Connector Cable Wire Harness Connector Housing Plug 0.6 Series

Excellent circuit protection function:

Overvoltage protection: keep VOUT within the set limit value and prevent overvoltage from acting on the subsequent load circuit.

Overcurrent and short-circuit protection: Compared with traditional fuses that have low accuracy and slow response in overcurrent protection, E-Fuse can quickly cut off the circuit when IOUT greatly exceeds the limit current in a short period of time in only 150us, reducing the risk of circuit damage. , after the circuit returns to normal or an external enable signal is applied, it will be connected again.

Undervoltage lockout: Contrary to excessive input voltage, E-Fuse may malfunction when the input voltage is lower than the E-Fuse operating voltage, and it will stop working when VIN is lower than the E-Fuse operating value.

Thermal shutdown: A large amount of heat will be generated in the case of over-current and over-voltage. When the temperature exceeds a certain value, the E-Fuse will be turned off without output, thereby protecting the E-Fuse.

Reverse current blocking: For a chip, the factors that most affect its service life are overvoltage and reverse connection. In serious cases, the chip may be broken down and the entire circuit board destroyed. For the reverse voltage generated by the inductive load, an NMOS can be used to implement the reverse current blocking function. In the example, we can directly use the built-in MOSFET E-FUSE for reverse current blocking, or we can use E-FUSE and an external The combination of MOSFETs realizes the reverse current blocking function.

The industry standard threshold for a single smart MOSFET in an automobile is 30A. In actual design, the traditional fuse scheme is still used for high-current electrical appliances above 30A. 

For normal circuits, the low-power operating characteristics of E-Fuse can be used to reduce the sleep current. If you choose the E-Fuse+external MOSFET solution, you can directly set the current limit of the over-current protection through software, which is conducive to the platformization of the hardware. application. This solution combines a series of built-in protection functions such as overvoltage, overcurrent, short circuit and thermal protection, and can achieve various high-performance and high-precision protection that traditional fuses cannot achieve. E-Fuse also has diagnostic functions, such as power supply normal, current monitoring, enable and error reporting. When an abnormality occurs in the circuit, it will send an external signal, making it easier to detect potential faults and effectively reduce maintenance costs and repair recovery time.

Very electric uses HSD, this scheme has been widely used in vehicle small current load control.

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